A view angle control sheet having a wide view angle, in which diffuse light from a screen image source is effectively utilized to suppress a decrease in screen brightness while a decrease in image contrast caused by an outside light beam is suppressed to prevent generation of a ghost to improve contrast. The lens portions have trapezoidal shapes in section arranged at predetermined intervals. A wedge-shaped portion between the lens portions has a bottom surface on a screen image source side while having a leading end on an observer side, and the following relationships hold: Nx .English Pound. Ny and -0.01